Finding the Fourth Proportional to 392,357.11, 541,380.49 and 239,359.99
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Solution
The fourth proportional to 392,357.11, 541,380.49 and 239,359.99 is: 330,272.67
Step by Step Solution
- Step 1: Write the proportion equation
392,357.11 : 541,380.49 = 239,359.99 : x - Step 2: Convert to fraction form
392,357.11/541,380.49 = 239,359.99/x - Step 3: Cross multiply
392,357.11x = 541,380.49 × 239,359.99 - Step 4: Simplify right side
392,357.11x = 129,584,828,672.60 - Step 5: Solve for x
x = 129,584,828,672.60/392,357.11 - Step 6: Final answer
x = 330,272.67
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.